18,753 research outputs found
CAD-model-based vision for space applications
A pose acquisition system operating in space must be able to perform well in a variety of different applications including automated guidance and inspections tasks with many different, but known objects. Since the space station is being designed with automation in mind, there will be CAD models of all the objects, including the station itself. The construction of vision models and procedures directly from the CAD models is the goal of this project. The system that is being designed and implementing must convert CAD models to vision models, predict visible features from a given view point from the vision models, construct view classes representing views of the objects, and use the view class model thus derived to rapidly determine the pose of the object from single images and/or stereo pairs
Expenditures In And Revenues From The UKCS : Estimating The Hypothetical Scottish Shares 1970-2003
Publisher PD
Coulomb entangler and entanglement testing network for waveguide qubits
We present a small network for the testing of the entanglement of two
ballistic electron waveguide qubits. The network produces different output
conditional on the presence or absence of entanglement. The structure of the
network allows for the determination of successful entanglement operations
through the measurement of the output of a single qubit. We also present a
simple model of a dynamic coulomb-like interaction and use it to describe some
characteristics of a proposed scheme for the entanglement of qubits in
ballistic electron waveguides.Comment: 12 pages of text plus 7 figures: total 19 page
Electronic Transport on the Shastry-Sutherland Lattice in Ising-type Rare Earth Tetraborides
In the presence of a magnetic field frustrated spin systems may exhibit
plateaus at fractional values of saturation magnetization. Such plateau states
are stabilized by classical and quantum mechanisms including order-by-disorder,
triplon crystallization, and various competing order effects. In the case of
electrically conducting systems, free electrons represent an incisive probe for
the plateau states. Here we study the electrical transport of Ising-type rare
earth tetraborides B (Er, Tm), a metallic Shastry-Sutherland lattice
showing magnetization plateaus. We find that the longitudinal and transverse
resistivities reflect scattering with both the static and dynamic plateau
structure. We model these results consistently with the expected strong
uniaxial anisotropy in a quantitative level, providing a framework for the
study of plateau states in metallic frustrated systems.Comment: 18 pages, 5 figure
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